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132740 = 2256637
BaseRepresentation
bin100000011010000100
320202002022
4200122010
513221430
62502312
71061666
oct403204
9222068
10132740
1190803
1264998
134855a
1436536
15294e5
hex20684

132740 has 12 divisors (see below), whose sum is σ = 278796. Its totient is φ = 53088.

The previous prime is 132739. The next prime is 132749. The reversal of 132740 is 47231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18496 + 114244 = 136^2 + 338^2 .

It is not an unprimeable number, because it can be changed into a prime (132749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3299 + ... + 3338.

It is an arithmetic number, because the mean of its divisors is an integer number (23233).

2132740 is an apocalyptic number.

132740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132740 is an abundant number, since it is smaller than the sum of its proper divisors (146056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132740 is a wasteful number, since it uses less digits than its factorization.

132740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6646 (or 6644 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 132740 is about 364.3350106701. The cubic root of 132740 is about 51.0114033196.

Adding to 132740 its reverse (47231), we get a palindrome (179971).

The spelling of 132740 in words is "one hundred thirty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 6637 13274 26548 33185 66370 132740